Cleon
Legend
Oh, are they listed as plain "lizardfolk"? That would explain why I didn't see them when searching for "Malpheggi."
The Dragon #318 article calls them "Malpheggi Lizardfolk" a couple of times at the start and then "lizardfolk" for the rest of the article.
Mechanically they're ordinary lizardfolk - the monster class ends up with identical stats to an SRD lizardfolk.
The Children of Ka are only called "Malpheggi Lizardfolk" 'cause they live in the Malpheggi swamp.